1211140103 has 2 divisors, whose sum is σ = 1211140104. Its totient is φ = 1211140102.

The previous prime is 1211140001. The next prime is 1211140109. The reversal of 1211140103 is 3010411121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211140103 - 2¹⁶ = 1211074567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211140109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605570051 + 605570052.

It is an arithmetic number, because the mean of its divisors is an integer number (605570052).

Almost surely, 2^1211140103 is an apocalyptic number.

1211140103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211140103 is an equidigital number, since it uses as much as digits as its factorization.

1211140103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1211140103 is about 34801.4382317743. The cubic root of 1211140103 is about 1065.9368138835.

Adding to 1211140103 its reverse (3010411121), we get a palindrome (4221551224).

The spelling of 1211140103 in words is "one billion, two hundred eleven million, one hundred forty thousand, one hundred three".